These men's formal trousers are a great addition to your wardrobe. To wear them, simply zip up the fly and button the waist. When choosing a size, always refer to the size chart as different suppliers have different sizing. For daily wear, these trousers can be paired with a shirt and a blazer for a formal look or with a casual tee for a more laid - back style. As for maintenance, it's best to follow the care instructions on the label. Generally, you can machine - wash them in cold water with like colors to keep the fabric and color in good condition. Avoid using harsh detergents as they may damage the polyester and cotton blend. Also, when ironing, use a medium - heat setting to prevent any shrinkage or damage to the fabric.